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Synthesis and structure of the n = 4 member of the framework aluminium alkylenediphosphonate series Al2[O3PC n H 2n PO3](H2O)2F2

Lookup NU author(s): Zhanhui Yuan, Emeritus Professor Bill CleggORCiD


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We report here the solvothermal synthesis and crystal structure of the hybrid inorganic-organic framework material Al2[O3PC 4H8PO3](H2O)2F 2·2H2O (monoclinic, 1P21 /m, a = 4.961(2) Å, b = 11.930(5) Å, c = 10.727(5) Å, β = 93.972(6)°, Z = 2, R(F, F 2 > 2σ) = 0.094, R w(F 2, all data) = 0.262), the third member of the Al 2[O3PC n H2n PO 3](H2O)2F2 framework series. The structure is formed from corrugated chains of corner-sharing AlO 4F2 octahedra in which alternating AlO4F 2 octahedra contain two fluorine atoms in a trans or a cis configuration. The diphosphonate groups link the chains together through Al-O-P-O-Al bridges and through the butyl groups to form a three-dimensional framework structure containing a one-dimensional channel system consisting of one type of channel only. The channels contain four extra-framework water molecules per unit cell. The formation of this member of the series shows that the form of the alkyl chain can successfully define the number of channel types and the channel length in this hybrid framework system. © Springer Science + Business Media, LLC 2006.

Publication metadata

Author(s): Yuan Z, Clegg W, Attfield MP

Publication type: Article

Publication status: Published

Journal: Journal of Porous Materials

Year: 2006

Volume: 13

Issue: 3

Pages: 207-212

ISSN (print): 1380-2224

ISSN (electronic): 1573-4854

Publisher: Springer


DOI: 10.1007/s10934-006-8006-5


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